ICD-10 Code K03.0 – Excessive attrition of teeth (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K03.0 – Excessive attrition of teeth
What it is
K03.0 identifies excessive wear of tooth surfaces from tooth-to-tooth contact. Use it when documentation describes abnormal attrition beyond expected age-related wear.
Clinical signs
Clinical findings may include flattened cusps, worn incisal edges, and reduced tooth height. Clinical features vary; refer to documentation.
When to use this code
Use K03.0 when the record clearly states excessive attrition, tooth wear, or attritional enamel loss. Code it for documented dental examination findings, especially when the clinician attributes wear to grinding or chronic occlusion. Check documentation if the cause is unclear.
Do not use for
Do not use this code for caries, erosion from acids, or fracture-related tooth loss. If the note describes another specific dental disorder, code that condition instead.
Coding tip
Confirm that the provider documents attrition specifically, because “worn teeth” alone may be too vague.